{"id":"CVE-2026-26939","state":"PUBLISHED","title":"Missing Authorization in Kibana Leading to Unauthorized Endpoint Response Action Configuration","description":"Missing Authorization (CWE-862) in Kibana’s server-side Detection Rule Management can lead to Unauthorized Endpoint Response Action Configuration (host isolation, process termination, and process suspension) via CAPEC-1 (Accessing Functionality Not Properly Constrained by ACLs). This requires an authenticated attacker with rule management privileges.","publishedAt":"2026-03-19T17:11:16.507Z","updatedAt":"2026-03-19T17:50:30.754Z","severity":{"score":6.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","source":"elastic"},"assigner":"elastic","products":["Elastic Kibana"],"affected":[{"vendor":"Elastic","product":"Kibana","defaultStatus":"unaffected","versions":[{"version":"9.0.0","status":"affected","lessThanOrEqual":"9.2.5","versionType":"semver"},{"version":"9.3.0","status":"affected","lessThanOrEqual":"9.3.0","versionType":"semver"},{"version":"8.0.0","status":"affected","lessThanOrEqual":"8.19.11","versionType":"semver"}]}],"references":["https://discuss.elastic.co/t/kibana-8-19-12-9-2-6-9-3-1-security-update-esa-2026-19/385530"],"weaknesses":["CWE-862"],"ingestedAt":"2026-10-29T20:11:21.040Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/26xxx/CVE-2026-26939.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-26939","state":"PUBLISHED","datePublished":"2026-03-19T17:11:16.507Z","dateUpdated":"2026-03-19T17:50:30.754Z","assignerShortName":"elastic","assignerOrgId":"271b6943-45a9-4f3a-ab4e-976f3fa05b5a","dateReserved":"2026-02-16T16:42:05.774Z"},"containers":{"cna":{"title":"Missing Authorization in Kibana Leading to Unauthorized Endpoint Response Action Configuration","descriptions":[{"lang":"en","value":"Missing Authorization (CWE-862) in Kibana’s server-side Detection Rule Management can lead to Unauthorized Endpoint Response Action Configuration (host isolation, process termination, and process suspension) via CAPEC-1 (Accessing Functionality Not Properly Constrained by ACLs). This requires an authenticated attacker with rule management privileges."}],"affected":[{"vendor":"Elastic","product":"Kibana","defaultStatus":"unaffected","versions":[{"version":"9.0.0","status":"affected","lessThanOrEqual":"9.2.5","versionType":"semver"},{"version":"9.3.0","status":"affected","lessThanOrEqual":"9.3.0","versionType":"semver"},{"version":"8.0.0","status":"affected","lessThanOrEqual":"8.19.11","versionType":"semver"}]}],"references":[{"url":"https://discuss.elastic.co/t/kibana-8-19-12-9-2-6-9-3-1-security-update-esa-2026-19/385530"}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseSeverity":"MEDIUM","baseScore":6.5,"confidentialityImpact":"NONE","integrityImpact":"HIGH","scope":"UNCHANGED","userInteraction":"NONE","privilegesRequired":"LOW","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-862","description":"CWE-862 Missing Authorization","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"elastic","orgId":"271b6943-45a9-4f3a-ab4e-976f3fa05b5a","dateUpdated":"2026-03-19T17:11:16.507Z"},"impacts":[{"capecId":"CAPEC-1","descriptions":[{"lang":"en","value":"CAPEC-1 Accessing Functionality Not Properly Constrained by ACLs"}]}],"source":{"discovery":"Elastic"},"x_generator":{"engine":"Elastic CVE Publisher 0.0.1"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-19T17:50:20.698249Z","id":"CVE-2026-26939","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-03-19T17:50:30.754Z"}}]}}}